Barrel recoil gun.



H. RABBA.

BARREL REGOIL GUN; APPLICATION FILED AUG. 1, 1910.

Patented Mar. 3, 1914.

L 1 w \\\w\w\w STAT'g Th1 HEINRICH RABBA, OE ESSEN-ON-THE-RUHR, GERMANY, ASSIGNOB, T FRIED. KRUPP AKTIENGESELLSCHAFT, OF ESSEN-ON-THE-RUHB, GERMANY.

fication.

follows.

This invention relates to barrel recoil guns in which the ghn barrel consists of a separable tube and jacket.

The invention improves on guns of this kind in that a separate locking device between the tube and jacket Will not be needed. The problem is solved in this inventionwith having the.gun barrel connected in such a manner with the slide intended for guiding the gun barrel on the guide-carrier or cradle, that the means connecting the gun ,barrel with the slide also .serves'to prohibit'the severing of the connect'ion between tube and jacket.

In the drawing is illustrated one en1bodiment of the invention, and it shows in Fig ure 3L partly a side view and partly a longitudinal section of the parts'ot' a barrel recoil gun that. are under consideation; Fig. 2 is anend view partly in section and partly in ele 'ation; and Figs. 3 to 5 are sections through lines 3 3, -l4 and 5-5 bf Fig. I seen from the right.

The gun barrel consists of a'tiibe A, and. a jacket 13 which incloses'ouly the rear end of the tube and at the same time constitutes the breech end of the gun barrel. A bayonet-lock is used to connect the tube with the jacket, and it consists of four rows of annular-ribs a on thetube, engag; ing with corresponding ribs 7) and grooves 7) in the jacket (Figs. '1 and The gun barrel rests on a slide C, that in well known manner carries the guubarrel on the guide-carrier or cradle 1); and connects it both with the recoil brake and the recuperator. The connection between the gun barrel and the slide C is arranged as The breech end of the jacket B carries a projection Zr" (Figs. 1 and 2) at the lower end of its rear face and'which is 50' disposed at right angles to the axis of the bore of the gun'barrel. Said projection has a semicylindrical surface as indicated by 'b? (Fig. 1). The slide 0' is provided with an open bearing 6-, Within which fits the projection b -The part of the bearingc that Specification of Letters Patent.

Application filed August 1,

C. fThe tube A T 180 from BARREL RECOIL GUN.

Patented Mar. 3,1914.

1910. Serial No. 574,810. I

l reaches over the projection I) has such a shape that the jacket B may be partially tilted upward around the axis of the semicvlindrical surface. -7)* of the projection 6 The. jacket B lies with its forward end against;a projection (Fig. l) on the slide rest-s witha. projection (0 (Figs. 1. 3 and t) near the muzzle on a. beariugblock c 1, of the slide C. This bearing-block is lf-shaped as seen in plan View. The part 1; of the be'aring block cit being at right angles to the longitudinal middle line of the slide carries a lip or ledge (Figs. 1 and 3) turned. toward the muzzle of the gun barrel and engaging'with another lip or ledge a" on the projection a of the tube A. The ledges a 0 as well as thesurfaces of the projection of and oi -the bearing-block c, a which serve as bear'ng surfaces, are arranged all concentric to the axis of. the bore of 'the gun barreL- This arrangement permits the turning of the tube A in the jacket 13 resting on the slide C. A rotatable bolt E (Figs. 1 and at) which cannot be Withdrawn, is carried in the cheeks a of the bearing-block c c, at right angles to the axis of the bore of'the 'gun' barrel. This bolt E has an-opeati'ng handle 6 (Fig. 1) and can engage with the projection a of the tubejA. The bolt is provided with several ribs .6 extending'at right angles to the axis of the bolt and-designed to enter corresponding grooves in the projection a? on the tube. The bolt E has further a recess e (Fig. at) which is formed that the tube may be turned around and drawn out against the slide C, when ithe" recess a is turned toward the face a of the..

projection i. e. when--the bolt'is'turned the position shown in the drawing.

slide C, the parts take the position shown in the drawing, and thus will the jacket B be prevented from turning on the slide, through the entering of its projection b into thev bearing 0 and through the bearing and the projection c from shifting onthe slide,

The tube A is, through the above mentioned bayonet-lock, connected 'tothe jacket and rests on the block 0 of the slide. The

bolt E and its ribs 6 enter into the projection a of the tube, so that the tubeis secured from turning. The lips (in? :0 engage with each other, thus; preventing the tube 'from When the gun barrel is connected to the swinging when the gun is fired. To-dismount the gun, thebolt E, by means of its handle 0 is turned 180. Then the tube is turned in the jacket so as to allow the ribs a to enter the grooves b of the jacket, and

the tube is free to be drawn out of the jacket.

The jacket may then'beremoved from the that the means of connecting the tube with the slide permit of the connecting ofthe tube with the jacket, after the latter has already been placed on the slide.

The. described arrangement renders unnecessary a separate locking device in the connection of the tube with the-jacket. It provides, besides, a sure connection between the gun barrel and the slide and furthermore it permits of an' easy mounting and dismounting of the gun, as the jacket and tube may be laid on the slide separately and also taken off separately.

I claim e i 1. In a recoiling gun with a separable gun barrel, the combination of a jacket, a tube, detachably connected to the jacket by a bayonet-lock and forming therewith the ban rel, a slide for guiding the gun barrel-on the guide-carrier,- said jacket having connection with the slide and said tube and slide having inter-engaging faces arranged concentrio with the axis of the gun barrel, :1 bolt disposed transversely of and engaging with the tube to. interlock said engaging faces, a recess in said bolt adapted to permit the rotation of the tube when said bolt is turned a half revolution.

2. In a recoiling gun with a separable gun barrel, the combination of a jacket, a' tube detachably connected thcrewilh by a bayonet-lock and forming therewith the barrel, and a slide for guiding the gun barrel on the guide-carrier said jacket having connection with the slide, said tube and slide having engaging facesarranged concentric withthe axis of the gun barrel, means engaging with the tube to prevent separation between the slide and the gun barrel, said means' making engagement between the tube and the slide and preventing separation between the tube and jacket.

3. In a recoiling gun with a separable gun barrel, the combination of a jacket, a tube detachably connected therewitlrby a bayonet-lock and forming therewith the barrel, a slide for guiding the gun barrel on the guide-carrier, said jacket having connection with the slide and said tube and slide having inter-engaging faces arranged concen'-' trio with the axis of the gun barrel, and a bolt disposed transversely of and engaging with the gun barrel and interlocking said engaging faces, and cooperating with the engagement between the jacket and the slide to prevent unlocking of the bayonet-lock of the tube and jacket.

centric with the axis of the gun barrel, a

plurality of grooves formed within a face of the tube adjacent said members and a locking bolt having ribs mounted on the slide and adapted to engage. withsaid grooves and hold the engaging members interlocked; said connections between the tube and the jacket with the slide adapted to prevent unlocking of the bayonet-lock of the -'tube and the jacket.

-5. In a recoiling gun with a separable gun barrel, the combination of a jacket, a tube detachably connected to the jacket by a bayonet-lock and forming therewith the barrel, a slide for guidin the gun barrel onthe guide-carrier, said acket havingconnection with the slide and said tube and slide, hav-: ing interengaging faces arranged concentric with the axis of the gun barrel, a bolt disposed transversely of and engaging with the gun barrel to interlock said engaging faces, and means connecting the jacket and the tube to the slide to prevent dismounting of the jacket from the slide.

6. In a recoiling gun with .a separable gun barrel, -the combination of a jacket, a tube detaehably connected to the jacket by a bayonet-lock and forming therewith the barrel, a slide for guiding the gun barrel on the guide-carrier or cradle, means for connecting the gun barrel to the slide, said means being adapted to prevent simultaneously the unlocking of the bayonet lock and thereby the separation of the tube from the jacket, said connecting means comprising a straight ledge and groove at the breech end, and an .arcuate ledge and groove near the muzzle end of the 'barrel, and a transverse collar bolt adjacent said arcuate ledge.

' The foregoing specification signed at Barmen, Germany, this 12th day of July, 1910.

HEINRICH RABBA. [n s.]

In presence of CHAS. J. WVm c rr, ALI-"nan HENKEL. 

